r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/slabinfo\x00', 0x0, 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
pread64(r1, &(0x7f0000000300)=""/180, 0xb4, 0x80000000)